Water-motor.



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' WATER MOTOR. APPLIU'ATION FILED 001.1. 1906.

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UNITED STATES :PATENT ortica.

LEWIS C. LEWIS, OF COLUMBUS, OHIO, ASSIGNOR TOTHE MONARCH MANUFACTURINGCOM- PANY, OF COLUMBUS, OHIO, A CORPORATION OF OHIO.

WATER-MOTOR.

Specification of Letters Patent.

Patented Nov. 5, 1907..

Application led 'ictooef' 1| 1906 Serial No. 336.866.

To all whom it 'may concern:

Be it known that I, LEWIS C. Lnwis, a citizen of the United States,residing at Columbus, in the county of Franklin and State of Ohio, haveinvented certain new and useful Improvements in Water-Motors, of whichthe following is a specication.

My invention relates to water motors. A

In many instances, motors of this character are used to actuate pumps.In some sections of the country, the natural water supply is very hardand it is customary to provide water lifts in residences, said waterlifts being actuated by the city water pressure and being utilized toelevate soit water from a cistern to the upper loors of the residence inwhich the lift is located. Since these lifts are used in residences, itis important that they should work with as little noise as possible andthe present invention is designed to provide a motor for a water liftwhich will be absolutely noiseless in operation, the shiting oi thevalves which control the water supply to the cylinder, beingaccomplished by water pressure and said valves being water cushioned ateach end oi their stroke.

Further objects and advantages of the invention will be set orth in thedetailed description which now ollows.

In the accompanying drawings: Figure l is a vertical section o a motorconstructed in accordance with A the invention, illustrating the mainpiston at one end oi its stroke and illustrating the valves at one oitheir limits of movement, Fig. 2 is a like view illustrating the pistonat the opposite end ot its stroke and the valves at their opposite limitoi movement, Fig. 3 is a transverse vertical section upon line :t x oFig. 2 looky ing in the direction indicated by the arrow, Fig. 4 is aside elevation of the valve chambers illustrating the arrangement oi theports hereinafter described, and, Fig. 5 is a view looking trom theopposite side of said valve chambers, illustrating the arrangement oiexhaust ports hereinafter described.

Like reference numerals designate corresponding parts in all of thefigures of the drawing.

Referring to the drawings, the numeral 5 designates the cylinder ol' thewater motor. Mounted in this cylinder is the usual piston 6, saidcylinder being secured to a piston rod 7. This piston rod may in turn besecured to any driven member, such as a pump, not shown. A stuiiing box8 oi' the usual and well known construction, prevents leakage about thepiston rod 7. The head 9 which closes the right hand end of the cylinder5, in Fig. l, is provided with an extension l0 which has a port Il.formed therethrough. A by-pass l2 leads from the port ll to a port 13,said port being formed in a cap 14 which is secured to the end oi acasting l5. This casting 15 has valve chambers 16 and 17 formed therein,the outer ends of these chambers being closed by a web i8 and theirinnerl ends being closed by plugs 19. One of these plugs 19 carries astuffing box 2O through 'which a rod 2l passes. Mounted upon the rod 2lare collars 22 and 23, the collar 23 lying inside ot the hollow pistonrod 7 and said piston rod being provided with a shoulder 24 which servesa purpose hereinafter described. Slidably disposed within the valvechamber I7 is a valve 25 havingtwo heads 26 and 27, said valve beingsecured to the end of the rod 21. Slidably disposed within the valvechamber 16 is a valve comprising heads 28, 29, 30 and 3l, said headsbeing constructed in the usual manner by clamping leather disks betweenmetallic washers. The detail construction of these heads orms no partot' the present invention.

The sides of the casting l5 are closed by plates 32 and 33, the spacewhich lies between the plate 32 and the walls oi the valve chambers 16and I7, forms an exhaust chamber 34 (see Figs. l3 and 5). Exhaust ports36 and 37 are formed in the walls of the chamber 16 and establishcommunication between said chamber and the exhaust chamber 34, it beingunderstood that the exhaust pipe 35 (see Fig. 3.) communicates with thischamber, said pipe being carried by the plate 32. As is best illustratedin Figs. 3 and 4, the space which lies between the plate 33 and thewalls oi the valve chambers 16 and 17 is divided into a plurality ochambers 38, 39, 40, 4l and 42 by suitable ribs 43 which are integralwith the casting l5.

Attention being still directed to Fig. 4, it will be seen that a port 44establishes communication between the chamber 38 and the port I3 of thecap I4. It will also be seen that a like port 45 establishescommunication between the chamber 40 and the interior of the cylinder 5.Ports 46 establish communication between the chamber 38 and the interioro the valve chamber 16. Ports 47 establish communication between thechamber 42 and the interior ot the valve chamber 16. Ports 48 establishcommunication between the chamber 40 and the interior oi the valvechamber 16. A port 49 establishes communication between the chamber 39and the interior of the valve chamber 17. between the chamber 42 and theinterior ol the valve chamber I7. A port 5l establishes communicationbetween the valve chamber 4l and the interior of the valve chamber 17.Ports 52 and 53 establish communication between the chambers 4l and 39and the interior of the valve chamber 16 at the opposite ends thereof.Exhaust ports 54 lead from the extreme ends of the valve chamber 17 tothe exhaust chamber 34. An inlet pipe y55 which is carried by the plate33 is adapted to conduct water from any suitable source of water supplyto the chamber 42.

The operation o the device is as follows: Water be- A port 50establishes communication ing supplied to the chamber 42, we will assumethat the parts are in the position illustrated in Fig. 1. At this timethe piston 6 has reached its limit of movement toward the right and theshoulder 24 by striking the collar 23, has moved the rod 21 and shovedthe valve 25 to the right. At this time the port 50 is in communicationwith the port 51 through the chamber 17, the water passing through theport 50 into said chamber, between the heads 26 and 27 of the valve 25.The water then passes out of the port 51 into the chamber 41, thencethrough the port 52 to the interior of the chamber 16 where it acts uponthe head 3l to shift the valve of which said head forms a part, to theleft in Fig. 1, or to the position illustrated in said ligure. When thisis done, the ports 46 are in communication with the ports 47 through.the chamber 16, the water entering from the chamber 42 through the ports47 to the interior of said chamber 16 between the heads 29 and 30,passing thence through the ports 46 to the chamber 38, thence throughthe port 44, port 13, bypass 12 and port 11 to the right hand end ofthecylinder 5, where it acts to move the piston toward the left in Fig. 1.When this piston reaches its limit of movement toward the left in Fig.1, the end of the piston rod strikes the collar 22 and shifts the valverod 21 and consequently the valve 25 to the position illustrated in Fig.2. During this movement of the piston toward the left in Fig. 1, theexhaust of the water contained in the cylinder upon the left side ofthe'piston, is accomplished as follows: The water to be exhausted passesthrough the port 45 to the chamber 40, thence through the ports 48 andbetween the heads 30 and 31 to the interior of the valve chamber 16.'From this chamber, the water passes through the exhaust ports 36 to theexhaust chamber 34 and thence through the exhaust pipe 35 to the wastepipe. When the valve 25 is in the position illustrated in Fig. 2,communication is established between the ports 49 and 50. The water thenenters from the chamber 42 through the port 50 to the valve chamber 17and between the heads 26 and 27. It passes from said chamber through theport 49 which has now been uncovered by the head 27 and brought intocommunication with the port 50, into the chamber 39. 1t passes from thechamber 39 through the port 53 to the chamber 16 where it acts upon thehead 28 to shift said head and the valve of which said head forms apart, to the position illustrated in Fig. 2. This movement of thisvalve, establishes communication between the ports 47'and 48, the waterentering from the chamber 42 through the ports 47 and between the heads29 and 30. The water then passes from the chamber 16 out of the ports 48to the chamber 40, thence through the port 45 to the cylinder 5 where itdrives the piston toward the right. During the movement of the pistontoward the right in Fig. 2, the Water contained in the cylinder 5 uponthe right hand side of said piston, is driven out through the port 11,by-pass 12, port 13, port 44, chamber 38, ports 46 to the valve chamber16, and from said valve chamber through the exhaust ports 37 to theexhaust chamber 34 and thence through the exhaust pipe 35 to the waste.

and this is accomplished in the following manner. After the valve hasbeen shifted to the position illustrated in Fig, l., when water entersat the left of the chamber 16 to shift said valve to the positionillustrated in Fig. 2, the water contained in the chamber 16 at theright hand end of the valve, is forced through the port 52 to thechamber 4l passing thence through the port 51 to the interior of thechamber 17 and thence through the exhaust port 54 to the exhaustchamber. With the valve in the position illustrated in Fig. 2, 4whenwater enters at the right hand end of said valve to shift it to theleft, the water contained at the left hand end of said valve is forcedthrough the port 53 to the chamber 39, thence through the port 49 to thechamber 17 passing from saidv chamber to the other port 54 through theexhaust chamber and thence to the waste.

From the foregoing description, it will be seen that means are hereinprovided for supplying water to one side of the piston until said pistonreaches the limit of its stroke and for then supplying water to theopposite side of said piston to return said piston. Means are alsoprovided for exhausting-the water from each side of the piston. Meansare provided for shifting the valves which control the flow of thiswater by water pressure and means are also provided for the exhaust ofthe water which has been used in shifting the valves.

By referring to Fig. 4 oi the drawing, it will be seen that the exhaustports 52 and 53 are so located that the valve leathers of the valves 28and 31 will cut off the iiow of Huid through said ports before the valvereaches its end of travel. Consequently a small amount of water will becaught between the ends of the valve and the ends of the valve vchamberto cushion the valve, said valve being thereby prevented from bumpingagainst the ends of the valve chamber.

From the foregoing description, it will be seen that simple and eHicientmeans are herein provided for accomplishing the objects of theinvention, but while the elements shown and described are well adaptedto serve the purposes for which they` are intended, it is to beunderstood that the invention is not limited to the precise constructionset forth, but includes within its purview such changes as may be madewithin the scope of the appended claims.

What I claim, is:

1. A water motor comprising two centrally disposed valve chambers 16 and17, an exhaust chamber located upon one side of the centrally disposedvalve chambers, an exhaust pipe leading from said exhaust chamber, acentral chamber 42 located upon the opposite side of the valve chambers,chambers 38, 39, 40 and 41 located upon the same side of the valvechambers as the chamber 42, ports establishing communication between allof said chambers and the valve chambers, ports establishingcommunication between both of the valve chambers and the exhaustchamber, a main cylinder', a port establishing communication between thechamber 40 and one end of the cylinder, a port 44 establishinglcommunication between the chamber 3S and the opposite end of thecylinder, a primary `valve located in one of said valve chambers, asecondary valve located in the other of said valve chambers, means forcausing the piston to move the primary valve at each end of its stroke,said primary valve controlling the [low of fluid to the secondary valve,and said secondary Valve controlling the ilow of fluid to the cylinder.

2. A wateiumotor, comprising two centrally disposed valve chambers 1Gand 17, an exhaust chamber located upon one side of the centrallydisposed valve central chamber 42 located upon the opposite side of thevalve chambers, chambers 3S, 3i), 40 and 4l located upon the same sideof the valve chambers as the chamber 42, there being ports establishingcommunication between all of said chambers and the valve chambers andthere being ports establishingl communication between`botl1 of the valvechambers and the exhaust chamber, a main cylinder', there being a portestablishing communication between the chamber 40 and one end of thecylinder, a chamber 1S located at one end of the valve chambers, therebeing a port 44 which establishes communication between the chamber 13and chamber 3S and there beiney a by-pass leadingfrom chamber 13 to theopposite end of the c vlinder, a primary valve located in one of saidvalve chambers. a secondary valve located in the other of said valvechambers. means for causing the piston to move the primary valve at eachend of its stroke, said primary valve controlling the tlow of iuid tothe secondary valve, and said secondary valve controlling the flow offluid to the cylinder.

3. A water motor, comprising two centrally disposed valve chambers 1Gand 1T, an exhaust chamber located upon one side of the centrallydispose'd valve chambers, a central chamber 42 located upon the oppositeside of the valve chambers, chambers 3S, 39, 40 and 41 located upon thesame side of the valve chambers as the chamber 42, there being portsestablishing communication. between all ol' said chambers and the valvechambers and there being ports establishing communication between bothof the valve chambers and the exhaust chamber, a main cylinder, therebeing a port establishing communication between the chamber 40 and oneend of the cylinder, a chamber 13 chambers, a l located at one end ofthe valve chambers, there beinf,r a

port 44 which establishes communication between the chamber 13 andchamber 38 and there being a bypass establishingcommunication betweenchamber 13 and the opposite end ot' the cylinder, a primary valvelocated in one o1 said valve chambers, a secondary valve located in theother of said valve chambers, a rod which projects through the cylinderhead into the cylinder and is rigidly connected to the primary valve, ahollow piston rod in which the end of said rod is disposed to travel,and means for causing the piston to shift said rod at each end of itsstroke.

4. A valve casingT for water motors, comprising two centrally disposedvalve chambers 16 and 17, an exhaust chamber located upon one side ofthe centrally disposed valve chambers, an exhaust pipe leading from saidexhaust chamber, a central chamber 42 located upon the opposite side. ofthe valve chambers, chambers 38, 39, 40 and 4l located upon the sameside of the valve chambers as the chamber 42, ports establishingcommunication between all of said chambers and the valve chamber, portsestablishing communication between both ot the valve chambers and theexhaust chamber, a port establishing communication between the chamber40 and one end of the cylinder of a water motor, a port 44 establishingcommuncation between the chamber 38 and the opposite end of thecylinder, and valves mounted in said valve chamber.

In testimony whereof I affix my signature in presence of two witnessesL. Cant. STOUGHTON.

